Doctors in Scotland can now prescribe nature to their patients


Take one long stroll, four times a week.

hiking in scotland
Photo by John Dancy on Unsplash
  • Doctors in Shetland, Scotland can now give nature prescriptions to their patients.
  • It's believed to be the first program of its kind in the U.K., and it comes with a year-long calendar of outdoor recommendations.
  • The evidence for the benefits of nature on mental and physical health are numerous.


Since October 5, doctors in Shetland, Scotland, have been authorized to prescribe nature to their patients. It's thought to be the first program of its kind in the U.K., and seeks to reduce blood pressure, anxiety, and increase happiness for those with diabetes, a mental illness, stress, heart disease, and more.

There is a whole leaflet of nature prescription suggestions that accompanies the program, filled with amusing, charming, sometimes seemingly off-kilter suggestions: in February, you can make a windsock from a hoop and material to "appreciate the speed of the wind"; in March, you can make beach art from natural materials or "borrow a dog and take it for a walk"; in April, you can "touch the sea" and "make a bug hotel"; in May, you can "bury your face in the grass"; in July, you can "pick two different kinds of grass and really look at them"; in August, you can summon a worm out of the ground without digging or using water; in September, you can help clean the beach and prepare a meal outdoors; in October, you can "appreciate a cloud"; you can "talk to a pony" in November, "feed the birds in your garden" in December, and do so much more. All on doctor's orders.

The evidence for the benefits of nature on mental and physical health are numerous. If you spend 90 minutes of your day outside in a wooded area, there will be a decrease of activity in the part of your brain typically associated with depression. Spending time in nature not only reduces blood pressure, anxiety, and increases happiness, but it reduces aggression, ADHD symptoms, improves pain control, the immune system, and—per a summary of research regarding the health benefits of nature—there's much more we don't know and are figuring out every day.

In Landmarks, the writer Robert Macfarlane bemoaned the disconnect between the landscape and the words used to describe and engage with that landscape, as well as all that disconnect implied. The book attempted to serve as something of a catch-all for words Macfarlane worried were being lost. There are Shetlandic words in the book, including grumma (mirage caused by mist or haze rising from the ground), flaa (hunk of turf, matted with roots of heather and grass, torn up by hand without a spade and used in thatching), skumpi (clumsy, lumpish peat; outermost peat in each row as the peats are cut out of the bank), dub (very deep bog or mire), yarf (swamp), iset (color of ice: isetgrey, isetblue), and others.

One could imagine that someone encouraged to spend more time in nature by their doctor won't just feel better—they might think about tearing a flaa out of some skumpi before turning around and heading back home. They'll spot some isetgrey ice. And, as they reconnect with nature, they will reconnect with the language of nature, a language that is frequently site-specific and carries with it a quiet institutional memory of its own, a memory worth recalling as the world faces development, urbanization, and climate change.

This is what aliens would 'hear' if they flew by Earth

A Mercury-bound spacecraft's noisy flyby of our home planet.

Image source: sdecoret on Shutterstock/ESA/Big Think
Surprising Science
  • There is no sound in space, but if there was, this is what it might sound like passing by Earth.
  • A spacecraft bound for Mercury recorded data while swinging around our planet, and that data was converted into sound.
  • Yes, in space no one can hear you scream, but this is still some chill stuff.

First off, let's be clear what we mean by "hear" here. (Here, here!)

Sound, as we know it, requires air. What our ears capture is actually oscillating waves of fluctuating air pressure. Cilia, fibers in our ears, respond to these fluctuations by firing off corresponding clusters of tones at different pitches to our brains. This is what we perceive as sound.

All of which is to say, sound requires air, and space is notoriously void of that. So, in terms of human-perceivable sound, it's silent out there. Nonetheless, there can be cyclical events in space — such as oscillating values in streams of captured data — that can be mapped to pitches, and thus made audible.

BepiColombo

Image source: European Space Agency

The European Space Agency's BepiColombo spacecraft took off from Kourou, French Guyana on October 20, 2019, on its way to Mercury. To reduce its speed for the proper trajectory to Mercury, BepiColombo executed a "gravity-assist flyby," slinging itself around the Earth before leaving home. Over the course of its 34-minute flyby, its two data recorders captured five data sets that Italy's National Institute for Astrophysics (INAF) enhanced and converted into sound waves.

Into and out of Earth's shadow

In April, BepiColombo began its closest approach to Earth, ranging from 256,393 kilometers (159,315 miles) to 129,488 kilometers (80,460 miles) away. The audio above starts as BepiColombo begins to sneak into the Earth's shadow facing away from the sun.

The data was captured by BepiColombo's Italian Spring Accelerometer (ISA) instrument. Says Carmelo Magnafico of the ISA team, "When the spacecraft enters the shadow and the force of the Sun disappears, we can hear a slight vibration. The solar panels, previously flexed by the Sun, then find a new balance. Upon exiting the shadow, we can hear the effect again."

In addition to making for some cool sounds, the phenomenon allowed the ISA team to confirm just how sensitive their instrument is. "This is an extraordinary situation," says Carmelo. "Since we started the cruise, we have only been in direct sunshine, so we did not have the possibility to check effectively whether our instrument is measuring the variations of the force of the sunlight."

When the craft arrives at Mercury, the ISA will be tasked with studying the planets gravity.

Magentosphere melody

The second clip is derived from data captured by BepiColombo's MPO-MAG magnetometer, AKA MERMAG, as the craft traveled through Earth's magnetosphere, the area surrounding the planet that's determined by the its magnetic field.

BepiColombo eventually entered the hellish mangentosheath, the region battered by cosmic plasma from the sun before the craft passed into the relatively peaceful magentopause that marks the transition between the magnetosphere and Earth's own magnetic field.

MERMAG will map Mercury's magnetosphere, as well as the magnetic state of the planet's interior. As a secondary objective, it will assess the interaction of the solar wind, Mercury's magnetic field, and the planet, analyzing the dynamics of the magnetosphere and its interaction with Mercury.

Recording session over, BepiColombo is now slipping through space silently with its arrival at Mercury planned for 2025.

Study helps explain why motivation to learn declines with age

Research suggests that aging affects a brain circuit critical for learning and decision-making.

Photo by Reinhart Julian on Unsplash
Mind & Brain

As people age, they often lose their motivation to learn new things or engage in everyday activities. In a study of mice, MIT neuroscientists have now identified a brain circuit that is critical for maintaining this kind of motivation.

Keep reading Show less

End gerrymandering? Here’s a radical solution

Why not just divide the United States in slices of equal population?

The contiguous U.S., horizontally divided into deciles (ten bands of equal population).

Image: u/curiouskip, reproduced with kind permission.
Strange Maps
  • Slicing up the country in 10 strips of equal population produces two bizarre maps.
  • Seattle is the biggest city in the emptiest longitudinal band, San Antonio rules the largest north-south slice.
  • Curiously, six cities are the 'capitals' of both their horizontal and vertical deciles.
Keep reading Show less
Surprising Science

Scientists discover why fish evolved limbs and left water

Researchers find a key clue to the evolution of bony fish and tetrapods.

Scroll down to load more…
Quantcast